环境 / 气候 / 范围 生态学

Europe: Tyrrhenian basin from Magra to Garigliano drainages in Italy. Introduced in Lake Scanno (Pescara drainage, Italy), which is the only locality where it is known to survive. Also survived some time in Lake Massaciuccoli (Serchio drainage [north of Pisa], Italy) but the present status of this population is still unknown.